DiscoveryOpt ED-PRS Gen2 5–25×56 – Precision Optics Without Compromise

The DiscoveryOpt ED-PRS Gen2 5–25×56 SFIR FFP-Z is a professionally designed first focal plane (FFP) riflescope built specifically for long-range precision shooting. Introduced as the second-generation model in 2023, it arrives with extra-low dispersion (ED) Japanese glass lenses, advanced mechanics and a robust aluminium tube – delivering performance that would cost significantly more from other brands.

Optical system – ED glass and multi-coated lenses

At the heart of the scope are premium Japanese HOYA ED (Extra-low Dispersion) glass lenses. The extra-low dispersion glass minimises chromatic aberration, keeping the image exceptionally sharp and high-contrast across the entire magnification range with accurate colour rendition. The fully multi-coated (FMC) anti-reflection coating applied to every lens surface ensures outstanding light transmission – particularly important in low-light conditions such as dawn, dusk or overcast weather.

The 56 mm objective lens provides a large light-gathering surface, delivering a bright and detailed image even at maximum 25× magnification. The eyepiece features fast and precise dioptre adjustment, ensuring a sharp reticle for every shooter.

First focal plane illuminated reticle

One of the scope's most important features is its glass-etched, MIL-based reticle placed in the first focal plane (FFP). The FFP arrangement means the reticle scales with magnification – so holdover marks, ballistic subtensions and ranging scales remain accurate and immediately usable at every power setting. There is no need for recalculation or correction, which is a significant advantage both in the field and under competition conditions.

The centre of the reticle is illuminated by a red light source, adjustable across six brightness levels, making it clearly visible against dark backgrounds in low-light situations where an unilluminated reticle might otherwise be lost against a dark target.

Zero-Stop turrets – precision and fast return to zero

The robust, tactical-style adjustment turrets operate in 0.1 MRAD (1/10 MIL) clicks – each click delivers a loud and positive tactile feedback, making precise zeroing and rapid field corrections straightforward. The clicks provide consistent and repeatable movement, which is a fundamental requirement in precision shooting.

The Zero-Stop system allows the zero point to be locked in: once set, the reference point can be quickly and reliably returned to at any time without the risk of accidentally going past it. The turrets can also be locked to prevent inadvertent movement during intense fieldwork or transport.

• Elevation travel — 36 MRAD (approx. 129 MOA)
• Windage travel — 17 MRAD (approx. 61 MOA)
• Click value — 0.1 MRAD / click @ 100 m = 1 cm

The 36 MIL elevation travel is an outstanding figure in this category, allowing extreme long-range shots to be dialled in without external ballistic aids such as a canted rail.

Side parallax adjustment – from 25 yards to infinity

The side parallax adjustment wheel is located on the left side of the scope for convenient one-handed operation. Parallax can be corrected from as close as 25 yards (~23 m), which makes the scope highly versatile: it is equally suited to airgun target shooting and shooting beyond 1,000 metres. Eliminating parallax error is essential in precision shooting, especially at high magnification where even the smallest discrepancy registers as a measurable error on the target.

Tube and mechanical construction

The 34 mm tube is machined from a single piece of aircraft-grade 6061-T6 aluminium alloy. This construction not only guarantees stability and internal mechanical precision, but the larger tube diameter also allows a wider internal adjustment range compared to competitors with 30 mm tubes.

• Nitrogen purging — prevents internal fogging even during rapid temperature changes
• Waterproofing — 100% waterproof seals, IPX7-rated protection
• Shockproofing — tested to 1,500 G; handles .50 BMG recoil
• Surface finish — matte, hard-anodised black coating

What's in the box?

The DiscoveryOpt ED-PRS Gen2 is not just the scope itself – the manufacturer includes premium accessories that are typically sold separately by other brands:

• 34 mm heavy-wall scope rings — for precision mounting
• Sunshade extensions — multiple sizes for different applications
• Levelling tool — for accurate horizontal alignment
• Lens cleaning kit — for optic maintenance
• Objective and eyepiece covers — protection during transport and storage

Who is it for?

The Discovery ED-PRS Gen2 is primarily built for long-range precision shooting, but its versatility makes it at home in many disciplines:

• PRS and precision rifle competitions — high magnification, FFP reticle, reliable turrets
• Long-range hunting — mountain hunting, extreme-range game management
• Long-range recreational shooting — consistent, accurate performance at 500–1,500 m
• Airgun target shooting — side parallax adjustable from 25 yards for close-range use

User feedback

Shooters who have used this scope are remarkably consistent in their praise: image sharpness and clarity at 25× magnification is surprisingly good, holding its own against significantly more expensive optics. Turret precision and repeatability are widely highlighted – clicks are loud, tracking is accurate and zeroing is quick. The Zero-Stop system's simplicity and reliability has also earned considerable praise.

The one recurring observation concerns the scope's weight (close to 1.25 kg without rings), which most users accept as the natural consequence of its robust build and outstanding optical performance.

In summary: the DiscoveryOpt ED-PRS Gen2 5–25×56 offers a genuinely compelling proposition for anyone seeking premium-level optics at an accessible price – without compromising on image quality or mechanical reliability.